Combination of Substituted Cyclodextrin Compound and Activated Carbon
Abstract
The invention is a composition that can prevent formation in, or scavenge undesirable organic materials from, a polymer matrix. The composition contains cyclodextrin and particles of activated carbon. The composition can scavenge thermal decomposition products that can be produced during melt processing of a polymer, contaminants inherent in a polymer, or other types of impurities from a polymer matrix that otherwise may elute into the air, a water supply, or an ingestible material such as a food, a drug, or a beverage. Other aspects of the invention are blends of the composition with polymeric materials, methods of making blends, articles containing the composition, and methods of making articles containing the composition.
Claims
exact text as granted — not AI-modified1 . A polymer additive composition comprising:
(a) a cyclodextrin, and (b) an effective amount of carbon particles comprising activated carbon,
wherein the cyclodextrin is substantially free of a compound in the central pore of the cyclodextrin ring.
2 . The composition of claim 1 wherein the additive composition comprises a substantially uniformly blended powder.
3 . The composition of claim 2 comprising about 0.001 to about 1.0 wt % of carbon particles in the powder.
4 . The composition of claim 1 comprising about 2 to 40,000 parts by weight of cyclodextrin per each part by weight of activated carbon particles.
5 . The composition of claim 1 wherein the composition further comprises a solvent.
6 . The composition of claim 5 wherein the solvent is water.
7 . The composition of claim 5 wherein the solvent is a hydrocarbon oil.
8 . The composition of claim 5 wherein the cyclodextrin is present at about 1.8 to 60 wt % in the solvent.
9 . The composition of claim 5 wherein the activated carbon particles are present at about 0.001 to 1.0 wt % in the solvent.
10 . The composition of claim 5 wherein the composition is further filtered through a filter medium having an average pore size of about 10 nanometers to 100 microns.
11 . The composition of claim 10 wherein the solvent is removed from the composition after filtering.
12 . The composition of claim 5 wherein the composition is centrifuged at about 500 to 1000 rpm.
13 . The composition of claim 1 wherein the carbon particles have an average particle size of about 10 nanometers to 100 microns.
14 . The composition of claim 1 wherein the carbon particles comprise acid-washed carbon particles.
15 . The composition of claim 1 wherein the cyclodextrin is β-cyclodextrin.
16 . The composition of claim 1 wherein the cyclodextrin comprises a non-reducing carbohydrate.
17 . A method of making a masterbatch composition comprising contacting a molten reactive thermoplastic polymer with an additive mixture, the additive mixture comprising
(a) a cyclodextrin and (b) an effective amount of carbon particles comprising activated carbon,
wherein the cyclodextrin is substantially free of a compound in the central pore of the cyclodextrin ring, and the reactive thermoplastic polymer comprises a reactive group capable of reacting to form a covalent bond with the cyclodextrin.
18 . The method of claim 17 wherein the cyclodextrin is contacted in an amount corresponding to about 100 parts by weight to 150,000 parts by weight of cyclodextrin groups per each one million parts of masterbatch composition.
19 . The method of claim 17 wherein the cyclodextrin is contacted in an amount corresponding to about 100 parts by weight to 80,000 parts by weight of cyclodextrin groups per each one million parts of masterbatch composition.
20 . The method of claim 17 wherein the carbon particle is contacted in an amount corresponding to about 0.005 parts by weight to 5000 parts by weight per each one million parts of the masterbatch composition.
21 . The method of claim 17 wherein the carbon particle is contacted in an amount corresponding to about 0.05 parts by weight to 2000 parts by weight per each one million parts of the masterbatch composition.
22 . The method of claim 17 wherein the contacting comprises extrusion blending.
23 . The method of claim 22 wherein the extrusion blending is followed by the steps of:
(a) extruding the masterbatch composition to form a polymeric strand; (b) passing the polymeric strand through a water bath; (c) passing the strand through a strand cutter to form a pellet or chip; and (d) drying the pellet or chip.
24 . A polymer additive composition comprising:
(a) a substituted cyclodextrin compound, and (b) an effective amount of carbon particles comprising activated carbon,
wherein the substituted cyclodextrin has a degree of substitution of about 0.3 to 2.5 and is substantially free of a compound in the central pore of the cyclodextrin ring.
25 . The composition of claim 24 comprising about 2 to 40,000 parts by weight of substituted cyclodextrin per each part by weight of activated carbon particles.
26 . The composition of claim 24 wherein the composition further comprises a solvent.
27 . The composition of claim 26 wherein the solvent is water.
28 . The composition of claim 26 wherein the solvent is a hydrocarbon oil.
29 . The composition of claim 26 wherein the cyclodextrin is present at about 1.8 to 60 wt % in the solvent.
30 . The composition of claim 26 wherein the activated carbon particles are present at about 0.005 to 1.0 wt % in the solvent.
31 . The composition of claim 24 wherein the carbon particles have an average particle size of about 10 nanometers to 100 microns.
32 . The composition of claim 24 wherein the carbon particles comprise acid-washed carbon particles.
33 . The composition of claim 24 wherein the cyclodextrin comprises β-cyclodextrin.
34 . The composition of claim 24 wherein the substituted cyclodextrin compound comprises a degree of substitution of about 0.5 to 2.
35 . The composition of claim 24 wherein the substituted cyclodextrin comprises a non-reducing carbohydrate.
36 . The composition of claim 24 wherein the substituted cyclodextrin compound has a substituent substantially on at least one —OH group at the −2 or 6 position of the glucose moiety in the cyclodextrin.
37 . The composition of claim 36 wherein the cyclodextrin compound comprises a 2-O-Methyl ether.
38 . The composition of claim 36 wherein the cyclodextrin compound comprises a 6-O-Acetyl ester.
39 . The composition of claim 26 wherein the composition is further filtered through a filter medium having an average pore size of about 10 nanometers to 100 microns.
40 . The composition of claim 39 wherein the solvent is removed from the composition after filtering.
41 . The composition of claim 26 wherein the composition is centrifuged at about 500 to 1000 rpm.
42 . A masterbatch composition comprising:
(a) a thermoplastic polymer; (b) a substituted cyclodextrin compound in an amount corresponding to about 100 to 150 , 000 parts by weight of substituted cyclodextrin per each one million parts of the composition; and (c) carbon particles comprising activated carbon in an amount corresponding to about 0.005 to 5,000 parts by weight of carbon particles per each one million parts of the composition,
wherein the substituted cyclodextrin has a degree of substitution of about 0.3 to 2.5 and is substantially free of any compound in the central pore of the cyclodextrin ring.
43 . The composition of claim 42 wherein the cyclodextrin is present in an amount of about 100 parts by weight to 80,000 parts by weight of the cyclodextrin compound per each one million parts of the composition.
44 . The composition of claim 42 wherein there are about 2 to 40,000 parts by weight of substituted cyclodextrin per each part by weight of activated carbon particles.
45 . The composition of claim 42 wherein the activated carbon particles are present at about 0.05 to 2000 parts by weight of the carbon particles per each one million parts of the composition.
46 . The composition of claim 42 wherein the carbon particles comprise acid washed carbon particles.
47 . The composition of claim 42 wherein the cyclodextrin is β-cyclodextrin.
48 . The composition of claim 42 wherein the cyclodextrin compound has a substituent substantially on at least one —OH group on the −2 or −6 position of the glucose moiety in the cyclodextrin.
49 . The composition of claim 48 wherein the cyclodextrin compound comprises a 2-O-Methyl ether.
50 . The composition of claim 48 wherein the cyclodextrin compound comprises a 6-O-Acetyl ester.
51 . The composition of claim 42 wherein the cyclodextrin compound comprises a degree of substitution of about 0.5 to 2.
52 . The composition of claim 42 wherein the activated carbon particles have an average particle size of about 10 nanometers to 100 microns.
53 . The composition of claim 42 , wherein the thermoplastic polymer is a polyamide, a polycarbonate, a polyurethane, a polyether, a polyketone, polystyrene, a polyacrylate, a polyphenylene oxide, poly(vinyl chloride), or copolymers or blends thereof.
54 . The composition of claim 42 wherein the thermoplastic polymer is polyester.
55 . The composition of claim 54 wherein the polyester comprises at least 60% by weight polyethylene terephthalate units and up to 40% by weight other polymers.
56 . The composition of claim 54 wherein the polyester comprises at least 60 % by weight polyethylene naphthalate units and up to 40% by weight other polymers.
57 . The composition of claim 54 wherein the polyester comprises a copolymer of polyethylene terephthalate/isophthalate and the cyclodextrin is a non-reducing carbohydrate.
58 . The composition of claim 61 wherein the thermoplastic polymer is a polyolefin.
59 . The composition of claim 58 wherein the polyolefin comprises polyethylene, polypropylene, or poly(ethylene-co-propylene).
60 . A method of making a masterbatch composition, the method comprising contacting a molten thermoplastic polymer with an additive mixture, said additive mixture comprising:
(a) a substituted cyclodextrin compound in an amount corresponding to about 100 parts by weight to 150,000 parts by weight of cyclodextrin groups per each one million parts of masterbatch composition, and (b) carbon particles comprising an activated carbon present in an amount corresponding to about 0.005 parts by weight to 5000 parts by weight per each one million parts of the masterbatch composition,
wherein the substituted cyclodextrin has a degree of substitution of about 0.3 to 2.5 and is substantially free of any compound in the central pore of the cyclodextrin ring.
61 . The method of claim 60 wherein the contacting comprises extrusion blending.
62 . The method of claim 61 wherein the extrusion blending is followed by the steps of:
(a) extruding the masterbatch composition to form a polymeric strand; (b) passing the polymeric strand through a water bath; (c) passing the strand through a strand cutter to form a pellet or chip; and (d) drying the pellet or chip.
63 . The method of claim 60 wherein the cyclodextrin is present in an amount of about 200 parts by weight to 80,000 parts by weight of the cyclodextrin compound per each one million parts of the composition.
64 . The method of claim 60 wherein there are about 2 to 40,000 parts by weight of substituted cyclodextrin per each part by weight of activated carbon particles.
65 . The method of claim 60 wherein the carbon particles are present at about 0.05 to 2000 parts by weight of the carbon particles per each one million parts of the composition.
66 . The method of claim 60 wherein the activated carbon particle has an average particle size of about 10 nanometers to 100 micrometers.
67 . A method of making a coated pellet or chip comprising contacting an additive composition with the surface of a thermoplastic pellet or chip, said additive composition comprising:
(a) a substituted cyclodextrin compound, and (b) an effective amount of carbon particles comprising activated carbon,
wherein the substituted cyclodextrin has a degree of substitution of about 0.3 to 2.5 and is substantially free of a compound in the central pore of the cyclodextrin ring.
68 . The method of claim 67 wherein the coated pellet or chip comprises about 100 parts by weight to 150,000 parts by weight of the substituted cyclodextrin compound per each one million parts of the coated pellet or chip.
69 . The method of claim 67 wherein the additive composition comprises about 100 to 80,000 parts by weight of substituted cyclodextrin per each part by weight of activated carbon particles.
70 . The method of claim 67 wherein the coated pellet or chip comprises about 0.05 to 5000 parts by weight of carbon particles per each one million parts of the coated pellet or chip.
71 . The method of claim 67 further comprising the step of drying the coated pellet or chip after coating.
72 . A thermoplastic polymeric article comprising:
(a) a thermoplastic polymer; (b) a substituted cyclodextrin compound in an amount corresponding to about 10 parts by weight to 50,000 parts by weight of cyclodextrin groups per each one million parts by weight of the article; and (c) an effective amount of carbon particles comprising activated carbon,
wherein the substituted cyclodextrin has a degree of substitution of about 0.3 to 2.5 and is substantially free of any compound in the central pore of the cyclodextrin ring.
73 . The article of claim 72 wherein the thermoplastic polymer is a polyamide, a polyurethane, a polycarbonate, a polyether, a polyketone, polystyrene, a polyacrylate, a polyphenylene oxide, poly(vinyl chloride), poly(ethylene-co-vinyl alcohol), or copolymers or blends thereof.
74 . The article of claim 97 wherein the thermoplastic polymer is a polyolefin.
75 . The article of claim 98 wherein the thermoplastic polymer is a polyester.
76 . The article of claim 75 wherein the polyester comprises at least 60% by weight polyethylene terephthalate units and up to 40% by weight other polymers.
77 . The article of claim 75 wherein the polyester comprises at least 60% by weight polyethylene naphthalate units and up to 40% by weight other polymers.
78 . The article of claim 72 wherein the cyclodextrin is β-cyclodextrin.
79 . The article of claim 72 wherein the cyclodextrin compound has a substituent substantially on at least one —OH group on the −2 or −6 position of the glucose moiety in the cyclodextrin.
80 . The article of claim 79 wherein the cyclodextrin compound comprises a 2-O-Methyl ether.
81 . The article of claim 79 wherein the cyclodextrin compound comprises a 6-O-Acetyl ester.
82 . The article of claim 72 wherein the cyclodextrin compound comprises a degree of substitution of about 0.5 to 2.
83 . The article of claim 72 wherein the cyclodextrin is present in an amount of about 100 parts by weight to 25,000 parts by weight per each one million parts of polymer.
84 . The article of claim 72 wherein there are about 2 to 40,000 parts by weight of substituted cyclodextrin per each part by weight of activated carbon particles.
85 . The article of claim 72 wherein the activated carbon particles are present at about 0.001 to 500 parts by weight of the carbon particles per each one million parts of the article.
86 . The article of claim 72 wherein the activated carbon particles are present at about 0.05 to 100 parts by weight of the carbon particles per each one million parts of the article.
87 . The article of claim 72 wherein the activated carbon particles have an average particle size of about 10 nanometers to 500 nanometers.
88 . The article of claim 72 wherein the carbon particles comprise acid washed carbon particles.
89 . The article of claim 72 wherein the article comprises a parison or a preform.
90 . The article of claim 72 wherein the article comprises a finished article.
91 . The article of claim 90 wherein the finished article comprises a container, a closure, a film, a coextruded film, a sheet, a liner, a semi-rigid member, a rigid member, a shaped member, a molded member, an embossed member, a porous member, a fiber, a yarn, a nonwoven fabric, a woven fabric, a coating on an article, a thin layer on top of an article, a thick layer on top of an article, a barrier layer, an injection molded article, a blow molded article, a rotomolded article, masterbatch pellets, an open-celled foam, a closed-cell foam, an adhesive article, an absorbent article, or a portion or a combination thereof.
92 . The article of claim 73 wherein the thermoplastic polymeric composition has no substantial visible polymer defects nor any substantial discoloration caused by the carbon particles and no carbon particles visible to the unaided human eye.
93 . The article of claim 73 wherein the thermoplastic polymeric composition has substantially the same stress-strain properties as the thermoplastic polymer without the substituted cyclodextrin and without the carbon particles.
94 . A method of making a thermoplastic article comprising the steps of:
(a) contacting a treated thermoplastic chip or pellet with an untreated thermoplastic chip or pellet, the treated thermoplastic chip or pellet comprising
(i) a substituted cyclodextrin in an amount of about 100 parts by weight to 150,000 parts by weight of per each one million parts of the treated chip, and
(ii) a carbon particle comprising an activated carbon in an amount of 0.005 to 5000 parts by weight per one million parts of the treated chip; and
(b) forming the article,
wherein the substituted cyclodextrin has a degree of substitution of about 0.3 to 2.5 and is substantially free of any compound in the central pore of the cyclodextrin ring.
95 . The method of claim 94 wherein the additive treatment is present substantially on the surface of the treated chip.
96 . The method of claim 94 wherein the additive treatment is present substantially uniformly throughout the treated chip.
97 . The method of claim 94 wherein one part by weight of the treated thermoplastic polymeric chip or pellet is blended with about 1 to 40 parts by weight of untreated thermoplastic polymeric chip or pellet.
98 . A method of making a thermoplastic article comprising the steps of
(a) contacting a thermoplastic polymer with an additive composition, the additive composition comprising
(i) a substituted cyclodextrin and
(ii) an effective amount of carbon particles comprising an activated carbon; and
(b) forming said article,
wherein the substituted cyclodextrin has a degree of substitution of about 0.3 to 2.5 and is substantially free of any compound in the central pore of the cyclodextrin ring.
99 . A polymer additive composition comprising:
(a) a functionalized polymer comprising a cyclodextrin covalently bonded to a polymer, and (b) an effective amount of carbon particles comprising activated carbon,
wherein the cyclodextrin is substantially free of a compound in the central pore of the cyclodextrin ring.
100 . The composition of claim 99 wherein there are about 2 to 40,000 parts by weight of cyclodextrin groups per each part by weight of activated carbon particles.
101 . The composition of claim 99 wherein the composition further comprises a solvent.
102 . The composition of claim 99 further comprising an oil.
103 . The composition of claim 101 wherein cyclodextrin groups are present at about 1.8 to 60 wt % in the solvent.
104 . The composition of claim 101 wherein the activated carbon particles are present at about 0.001 to 1.0 wt % in the solvent.
105 . The composition of claim 99 wherein the carbon particles have an average particle size of about 10 nanometers to 100 microns.
106 . The composition of claim 99 wherein the carbon particles comprise acid washed carbon particles.
107 . The composition of claim 99 wherein the cyclodextrin is β-cyclodextrin.
108 . The composition of claim 99 wherein the cyclodextrin further comprises a substituent substantially on at least one —OH group at the −2 or 6 position of the glucose moiety in the cyclodextrin.
109 . The composition of claim 108 wherein the substituent comprises a 2-O-Methyl ether.
110 . The composition of claim 108 wherein the substituent comprises a 6-O-Acetyl ester.
111 . The composition of claim 99 wherein the cyclodextrin is integrally situated within the polymer backbone of the functionalized polymer.
112 . The composition of claim 99 wherein the cyclodextrin is pendant to the polymer backbone of the functionalized polymer.
113 . The composition of claim 99 wherein the functionalized polymer comprises a polyamide, a polycarbonate, a polyurethane, a polyether, a polyketone, polystyrene, a polyacrylate, a polyphenylene oxide, poly(vinyl chloride), poly(ethylene-co-vinyl alcohol), or copolymers or blends thereof.
114 . The composition of claim 99 wherein the functionalized polymer is a polyolefin.
115 . The composition of claim 114 wherein the polyolefin comprises a polyethylene, a polypropylene, a polyisobutene, or a poly(ethylene-co-propylene).
116 . The composition of claim 111 wherein the cyclodextrin is grafted to the polymer through a reaction with an anhydride moiety, an epoxide moiety, or a chloride moiety.
117 . The composition of claim 116 wherein the cyclodextrin is grafted to the polymer through an anhydride moiety comprising maleic anhydride.
118 . A masterbatch composition comprising:
(a) a thermoplastic polymer; (b) a functionalized polymer comprising a cyclodextrin group covalently bonded to a polymer, in an amount corresponding to about 100 to 150,000 parts by weight of cyclodextrin groups per each one million parts of the composition; and (c) a carbon particle comprising an activated carbon, in an amount corresponding to about 0.005 to 5,000 parts by weight of carbon particles per each one million parts of the composition,
wherein the cyclodextrin is substantially free of a compound in the central pore of the cyclodextrin ring.
119 . The composition of claim 118 wherein the cyclodextrin group is β-cyclodextrin.
120 . The composition of claim 118 wherein the cyclodextrin group further has a substituent substantially on at least one —OH group on the −2 or −6 position of the glucose moiety in the cyclodextrin.
121 . The composition of claim 120 wherein the substituent comprises a 2-O-Methyl ether.
122 . The composition of claim 120 wherein the substituent comprises a 6-O-Acetyl ester.
123 . The composition of claim 118 wherein the cyclodextrin is present in an amount of about 100 parts by weight to 80,000 parts by weight of the cyclodextrin compound per each one million parts of the composition.
124 . The composition of claim 118 wherein there are about 2 to 40,000 parts by weight of substituted cyclodextrin per each part by weight of activated carbon particles.
125 . The composition of claim 118 wherein the activated carbon particles are present at about 0.05 to 2000 parts by weight of the carbon particles per each one million parts of the composition.
126 . The composition of claim 118 wherein the activated carbon particles have an average particle size of about 10 nanometers to 100 microns.
127 . The composition of claim 118 wherein the carbon particles comprise acid washed carbon particles.
128 . The composition of claim 118 wherein the thermoplastic polymer is a polyamide, a polycarbonate, a polyurethane, a polyether, a polyketone, polystyrene, a polyacrylate, a polyphenylene oxide, poly(vinyl chloride), or copolymers or blends thereof.
129 . The composition of claim 118 wherein the thermoplastic polymer is polyester.
130 . The composition of claim 118 wherein the thermoplastic polymer is a polyolefin.
131 . The composition of claim 118 wherein the functionalized polymer comprises a polymer comprising a polyester, a polyamide, a polycarbonate, a polyurethane, a polyether, a polyketone, polystyrene, a polyacrylate, a polyphenylene oxide, or copolymers or blends thereof.
132 . The composition of claim 118 wherein the functionalized polymer comprises a polyolefin.
133 . The composition of claim 132 wherein the polyolefin comprises a polyethylene, a polypropylene, a polyisobutylene, a poly(ethylene-co-propylene), or copolymers or blends thereof.
134 . The composition of claim 118 wherein the cyclodextrin is integrally situated in the polymer backbone of the functionalized polymer.
135 . The composition of claim 118 wherein the cyclodextrin is pendant from the polymer backbone of the functionalized polymer.
136 . A method of making a masterbatch composition, the method comprising contacting a molten thermoplastic polymer with an additive mixture, the additive mixture comprising
(a) a functionalized polymer comprising a cyclodextrin group covalently bonded to a polymer, and (b) a carbon particle comprising an activated carbon,
wherein the cyclodextrin groups are substantially free of a compound in the central pore of the cyclodextrin ring, the functionalized polymer is present in an amount corresponding to about 100 parts by weight to 150,000 parts by weight of cyclodextrin groups per each one million parts of polymeric composition, and the carbon particle is present in an amount corresponding to about 0.005 parts by weight to 5000 parts by weight per each one million parts of the polymeric composition.
137 . A method of making a masterbatch composition, the method comprising contacting an additive composition to the surface of a thermoplastic pellet or chip, said additive composition comprising:
(a) a functionalized polymer comprising a cyclodextrin group covalently bonded to a polymer and added in an amount corresponding to about 100 parts by weight to 150,000 parts by weight of cyclodextrin groups per each one million parts of polymeric composition, and (b) a carbon particle comprising an activated carbon, added in an amount corresponding to about 0.005 parts by weight to 5000 parts by weight of carbon particles per each one million parts of the polymeric composition,
wherein the cyclodextrin groups are substantially free of a compound in the central pore of the cyclodextrin ring.
138 . A thermoplastic article comprising:
(a) a thermoplastic polymer; (b) a functionalized polymer comprising a cyclodextrin group covalently bonded to a polymer, added in an amount corresponding to about 10 parts by weight to 50,000 parts by weight of cyclodextrin groups per each one million parts by weight of the article and (c) an effective amount of carbon particles comprising activated carbon,
wherein the cyclodextrin group is substantially free of any compound in the central pore of the cyclodextrin ring.
139 . The article of claim 138 wherein the thermoplastic polymer is a polyester, a polyamide, a polyurethane, a polycarbonate, a polyether, a polyketone, polystyrene, a polyacrylate, a polyphenylene oxide, poly(vinyl chloride), or copolymers or blends thereof.
140 . The article of claim 138 wherein the thermoplastic polymer is a polyolefin.
141 . The article of claim 140 wherein the polyolefin comprises a polyethylene, a polypropylene, a poly(ethylene-co-propylene), a polybutylene, or a copolymer or blend thereof.
142 . The article of claim 138 wherein the cyclodextrin group is β-cyclodextrin.
143 . The article of claim 138 wherein the cyclodextrin group is further substituted substantially on at least one —OH group on the −2 or −6 position of the glucose moiety in the cyclodextrin group.
144 . The article of claim 143 wherein the cyclodextrin group comprises a 2-O-Methyl ether.
145 . The article of claim 143 wherein the cyclodextrin group comprises a 6-O-Acetyl ester.
146 . The article of claim 138 wherein the cyclodextrin group comprises a degree of substitution of about 0.3 to 2.5.
147 . The article of claim 138 wherein the cyclodextrin groups are present in an amount of about 100 parts by weight to 25,000 parts by weight per each one million parts of the article.
148 . The article of claim 138 wherein there are about 2 to 40,000 parts by weight of substituted cyclodextrin per each part by weight of activated carbon particles.
149 . The article of claim 138 wherein the activated carbon particles are present at about 0.05 to 100 parts by weight of the carbon particles per each one million parts of the article.
150 . The article of claim 138 wherein the activated carbon particles have an average particle size of about 10 nanometers to 500 nanometers.
151 . The article of claim 138 wherein the carbon particles comprise acid washed carbon particles.
152 . The article of claim 138 wherein the polymeric composition comprises a parison or a preform.
153 . The article of claim 138 wherein the polymeric composition comprises a finished article comprising a container, a closure, a film, a coextruded film, a sheet, a liner, a semi-rigid member, a rigid member, a shaped member, a molded member, an embossed member, a porous member, a fiber, a yam, a nonwoven fabric, a woven fabric, a coating on an article, a thin layer on top of an article, a thick layer on top of an article, a barrier layer, an injection molded article, a blow molded article, a rotomolded article, masterbatch pellets, an open-celled foam, a closed-cell foam, an adhesive article, an absorbent article, or a portion or a combination thereof.
154 . The article of claim 138 wherein the article has no substantial visible defects nor substantial discoloration due to carbon particles and no carbon particles visible to the unaided human eye.
155 . The article of claim 138 wherein the article has substantially the same tensile properties as the thermoplastic polymer without the substituted cyclodextrin and without the carbon particles.
156 . The article of claim 138 wherein the functionalized polymer comprises a polymer comprising a polyester, a polyamide, a polycarbonate, a polyurethane, a polyether, a polyketone, polystyrene, a polyacrylate, a polyphenylene oxide, poly(vinyl chloride), or copolymers or blends thereof.
157 . The article of claim 138 wherein the functionalized polymer comprises a polyolefin.
158 . The article of claim 138 wherein the cyclodextrin groups are integrally situated within the backbone of the functionalized polymer.
159 . The article of claim 138 wherein the cyclodextrin is pendant to the backbone of the functionalized polymer.
160 . The article of claim 159 wherein the cyclodextrin is bonded to the polymer through a reaction with an anhydride moiety, an epoxide moiety, or a chloride moiety.
161 . The article of claim 160 wherein the cyclodextrin is grafted to the polymer through a reaction with an anhydride moiety comprising maleic anhydride.
162 . A method of making a thermoplastic polymeric article comprising the steps of:
(a) melt blending a treated thermoplastic polymeric chip or pellet and an untreated thermoplastic chip or pellet, said treated thermoplastic polymeric chip or pellet comprising an additive treatment comprising
(i) a functionalized polymer comprising a cyclodextrin group covalently bonded to a polymer, the cyclodextrin grafted polymer being present in an amount of about 100 parts by weight to 150,000 parts by weight of per each one million parts of the treated chip, and
(ii) carbon particles comprising an activated carbon, present in the in an amount of 0.005 to 5000 parts by weight per one million parts of the treated chip; and
(b) forming the article,
wherein the cyclodextrin groups are substantially free of any compound in the central pore of the cyclodextrin ring, wherein the cyclodextrin groups are present in an amount of about 10 to 50,000 parts by weight per one million parts by weight of the article and the carbon particles are present in an amount of about 0.001 to 500 parts by weight per million parts of the article.
163 . The method of claim 162 wherein the melt blending is carried out in an extruder.
164 . The article of claim 162 wherein forming the article comprises injection molding, blow molding, injection blow molding, melt blowing, electrospinning, solution coating, film extrusion, film coextrusion, profile extrusion, extrusion coating, or a combination thereof.
165 . The method of claim 162 wherein the wherein there are about 2 to 40,000 parts by weight of cyclodextrin groups per each part by weight of activated carbon particles.
166 . The method of claim 162 wherein the carbon particles are present at about 0.05 to 100 parts by weight per each one million parts by weight of the article.
167 . The method of claim 162 , wherein the carbon particles are present at about 0.05 to 50 parts by weight per each one million parts by weight of the article.
168 . The method of claim 162 wherein the additive treatment is present substantially on the surface of the treated chip.
169 . The method of claim 162 wherein the additive treatment is present substantially uniformly throughout the treated chip.
170 . The method of claim 162 wherein one part by weight of the treated thermoplastic polymeric chip or pellet is blended with about 1 to 40 parts by weight of untreated thermoplastic chip or pellet.
171 . A method of making a thermoplastic article comprising the steps of:
(a) blending a molten thermoplastic polymer with an additive composition, the additive composition comprising
(i) a functionalized polymer comprising a cyclodextrin group covalently bonded to a polymer, and
(ii) a carbon particle comprising an activated carbon; and
(b) forming the article,
wherein the cyclodextrin groups are substantially free of any compound in the central pore of the cyclodextrin ring, wherein the cyclodextrin groups are present an amount of about 10 to 50,000 parts by weight per one million parts by weight of the article and the carbon particle is present in an amount of about 0.001 to 500 parts by weight per million parts by weight of the article.
172 . The method of claim 171 wherein the blending is carried out in an extruder.
173 . The method of claim 171 wherein forming the article comprises injection molding, blow molding, injection blow molding, melt blowing, electrospinning, solution coating, film extrusion, film coextrusion, profile extrusion, extrusion coating, or a combination thereof.
174 . The method of claim 7 1 , wherein the wherein there are about 2 to 40,000 parts by weight of cyclodextrin groups per each part by weight of activated carbon particles.
175 . The method of claim 171 wherein the carbon particles are present at about 0.05 to 100 parts by weight per each one million parts by weight of the article.Cited by (0)
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